//用于帮助中心中点击问题显示内容
$(function(){
    $('.help_list').on('click', '.title_close', function(e){
        e.preventDefault();
        var actionBtn = $(this).find('.sp'),
			parent = actionBtn.closest('.help_list'),
			detail = parent.find('.ui_item_detail'),
			thumb = parent.find('.ui_item_thumb');
	if(actionBtn.hasClass('point_open sp')) {
		actionBtn.removeClass('point_open sp')
		.addClass('point_close sp');
		detail.slideToggle();
	} else {
		actionBtn.removeClass('point_close sp')
	.addClass('point_open sp');
		detail.slideToggle();
		}
	});
});